In addition to the suspension and rehabilitation program, Herman must have a clean drug test in order to fight once his suspension ends.

UFC 153 took place Oct. 13 at Rio de Janeiro’s HSBC Arena. Since the card took place in Brazil, the UFC did administered its own drug testing for the event. Along with Herman’s positive test, main-event light heavyweight Stephan Bonnar (15-8 MMA, 8-7 UFC) tested positive for a banned steroid following his loss to Anderson Silva.

Bonnar was suspended for one year, though three days prior to news of his positive test, which was first reported by MMAjunkie.com, he announced his retirement.

Like Bonnar, Herman failed a drug test for the second time in his UFC career. In 2011, the Indiana native was scratched from a planned fight against Mike Russow at UFC 136 when he failed a pre-fight drug screen administered by the Texas Department of Licensing and Regulation. Herman later revealed marijuana was the offending substance, though he denied using the drug.

For his offense at UFC 153, though, Herman, according to a statement released by the UFC, admitted his use and accepted whatever punishment would be handed down.

Herman’s future with the UFC could be in jeopardy regardless of the failed test and suspension. The fighter, after opening his UFC career with a “Fight of the Night” win over John-Olav Einemo, has lost three straight – all by stoppage. At UFC 153, he was submitted by Antonio Rodrigo Nogueira in the second round.

According to Ratner, each of the 24 fighters on the card at UFC 153 was tested for performance-enhancing drugs and drugs of abuse, such as marijuana and cocaine. The remaining 22 fighters on the card all had their tests come back clean.